Suppose household annual demand for gasoline follows the equation QD =  2000 – 500P + 25I where P is the price of a gallon of gasoline and I is household income in 1000s of dollars. Suppose that P = 3 and I = 60. What quantity of gasoline will households demand at this price and income level? __________ What is the income elasticity of demand for gasoline at this price, income, and quantity level? __________ What happens to the income elasticity of gasoline demand if I rises from 60 to 100? It _____________ (rises/falls) to ______________. Does this change in elasticity make gasoline buying more or less sensitive to income changes?

ENGR.ECONOMIC ANALYSIS
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ISBN:9780190931919
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Chapter1: Making Economics Decisions
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  1. Suppose household annual demand for gasoline follows the equation

QD =  2000 – 500P + 25I

where P is the price of a gallon of gasoline and I is household income in 1000s of dollars.

Suppose that P = 3 and I = 60.

What quantity of gasoline will households demand at this price and income level?

__________

What is the income elasticity of demand for gasoline at this price, income, and quantity level?

__________

What happens to the income elasticity of gasoline demand if I rises from 60 to 100?

It _____________ (rises/falls) to ______________.

Does this change in elasticity make gasoline buying more or less sensitive to income changes?

__________

 

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